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lua: pcall/xpcall/error via guard+raise; arity-dispatch lua-apply +9 tests
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giles
2026-04-24 18:05:35 +00:00
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plans/lua-on-sx.md
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@@ -61,7 +61,7 @@ Each item: implement → tests → tick box → update progress log.
### Phase 4 — metatables + error handling (next run)
- [x] Metatable dispatch: `__index`, `__newindex`, `__add`/`__sub`/…, `__eq`, `__lt`, `__call`, `__tostring`, `__len`
- [ ] `pcall`/`xpcall`/`error` via handler-bind
- [x] `pcall`/`xpcall`/`error` via handler-bind
- [ ] Generic `for … in …`
### Phase 5 — coroutines (the showcase)
@@ -82,6 +82,7 @@ Each item: implement → tests → tick box → update progress log.
_Newest first. Agent appends on every commit._
- 2026-04-24: lua: `pcall`/`xpcall`/`error` via SX `guard` + `raise`. Added `lua-apply` (arity-dispatch 0-8, apply fallback) because SX `apply` re-wraps raises as "Unhandled exception". Table payloads preserved (`error({code = 42})`). 256 total tests.
- 2026-04-24: lua: phase 4 — metatable dispatch (`__index`/`__newindex`/arith/compare/`__call`/`__len`), `setmetatable`/`getmetatable`/`type` globals, OO `self:method` pattern. Transpile routes all calls through `lua-call` (stashed `sx-apply-ref` to dodge user-shadowing of SX `apply`). Skipped `__tostring` (needs `tostring()` builtin). 247 total tests.
- 2026-04-24: lua: PUC-Rio scoreboard baseline — 0/16 runnable pass (0.0%). Top modes: 14× parse error, 1× `print` undef, 1× vararg transpile. Phase 3 complete.
- 2026-04-24: lua: conformance runner — `conformance.sh` shim + `conformance.py` (long-lived sx_server, epoch protocol, classify_error, writes scoreboard.{json,md}). 24 files classified in full run: 8 skip / 16 fail / 0 timeout.